Title :
Theory for calculating approximate values for the propagation constants of an optical rib waveguide by weighting the refractive indices
Author :
Kendall, P.C. ; Adams, M.J. ; Ritchie, S. ; Robertson, M.J.
Author_Institution :
University of Sheffield, Department of Electronic and Electrical Engineering, Sheffield, UK
fDate :
9/1/1987 12:00:00 AM
Abstract :
The effective-index method is an approximate way of calculating the propagation constants of a rib waveguide. It is shown that the range of application and the uniformity of approximation can be enhanced by weighting the indices appropriately. The theory is presented and the results compared with accurately known values.
Keywords :
optical waveguide theory; optical waveguides; refractive index; approximate values; effective-index method; optical rib waveguide; propagation constants; refractive indices; weighted index method; weighting;
Journal_Title :
Physical Science, Measurement and Instrumentation, Management and Education - Reviews, IEE Proceedings A
DOI :
10.1049/ip-a-1.1987.0094
